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TYPICAL ROOFTOP APPLICATION WITH FRAME
INSTALLATION
ROOFTOP -- UNITS
For roof top applications using a field fabricated frame and ducts,
use the following procedure:
1. The frame must be located and secured by bolting or welding to
the roof. Flashing is required.
2. The hole in the roof must be prepared in advance of installing the
unit.
3. Secure the ducts to the roof.
4. Place the unit on the frame or roof curb. Refer to Figures 9 or
10.
5. Secure the unit to the frame or roof curb.
6. Insulate any ductwork outside of the structure with at least two (2)
inches of insulation and then weatherproof. There must be a
weatherproof seal where the duct enters the structure.
7. Complete the installation according to the instructions in the
following sections of this manual.
TYPICAL ROOFTOP APPLICATIONS WITH FRAME
9
0
OOF FLASHING
WEATHER-PROOF
DUCT
RETURN AIR SUPPLY AIR
ANGLE IRON
FRAME
ANGLE IRON
FRAME
SUPPLY AIR
ROOF FLASHING
WEATHER-PROOF
DUCT
RETURN AIR
ROOF FLASHING
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